CActiveDataProvider with custom value - php

Question

In my Yii project I need to search and sort data by some custom value. I have 'users' table and I need every User instance to have month_profit property which should combine SQL data + lots of my own calculations. At the moment I have in my User model:
public $month_profit;
public function search($pageSize = 10, $defaultOrder = '`t`.`reg_date` DESC')
{
$criteria = new CDbCriteria;
$criteria->with = array('money');
$requests_table = Requests::model()->tableName();
$requests_count_sql = "(SELECT COUNT(*) FROM $requests_table rt WHERE rt.partner_id = t.id) ";
$referrals_table = Referrals::model()->tableName();
$referrals_count_sql = "(SELECT COUNT(*) FROM $referrals_table reft WHERE reft.user_id = t.id) ";
$referrals_payed_sql = "(SELECT COUNT(*) FROM $referrals_table reft WHERE reft.user_id = t.id AND reft.status = 'Оплачено') ";
//$month profit_sql = ???;
$criteria->select = array(
'*',
$requests_count_sql . "as requests_count",
$referrals_count_sql . "as referrals_count",
$referrals_payed_sql . "as referrals_payed_count",
$month_profit_sql . "as month_profit",
);
$criteria->compare($requests_count_sql, $this->requests_count);
$criteria->compare($referrals_count_sql, $this->referrals_count);
$criteria->compare($referrals_payed_sql, $this->referrals_payed_count);
$criteria->compare($month_profit_sql, $this->month_profit);
$criteria->compare('t.id', $this->id);
$criteria->compare('t.reg_date', $this->reg_date, true);
$criteria->compare('username', $this->username, true);
$criteria->compare('password', $this->password, true);
$criteria->compare('site', $this->site, true);
$criteria->compare('status', $this->status, true);
return new CActiveDataProvider(get_class($this), array(
'criteria' => $criteria,
'pagination' => array( 'pageSize' => $pageSize ),
'sort' => array(
'defaultOrder' => $defaultOrder,
'attributes' => array(
'id' => array(
'asc' => '`t`.`id` ASC',
'desc' => '`t`.`id` DESC',
),
'email' => array(
'asc' => '`t`.`email` ASC',
'desc' => '`t`.`email` DESC',
),
'requests_count' => array(
'asc' => 'requests_count ASC',
'desc' => 'requests_count DESC',
),
'referrals_count' => array(
'asc' => 'referrals_count ASC',
'desc' => 'referrals_count DESC',
),
'referrals_payed_count' => array(
'asc' => 'referrals_payed_count ASC',
'desc' => 'referrals_payed_count DESC',
),
'money' => array(
'asc' => 'money.profit',
'desc' => 'money.profit DESC',
),
'fullProfit' => array(
'asc' => 'money.full_profit',
'desc' => 'money.full_profit DESC',
),
'*',
),
)
));
}
E.g. I have a relation in my User model:
public function relations()
{
return array(
'clients' => array( self::HAS_MANY, 'Referrals', 'user_id'),
Let's say my month_profit will be equal: count of User's clients registered in last 30 days * 150. I need to somehow pass this data to search() and create CDbCriteria to sort users by month_profit. Is this even real? :) Should I create another function to calculate everything and then pass to search()? All my tries followed to failure so far.

Answer 1

I suppose you need something like the following, based on this guide http://www.yiiframework.com/wiki/319/searching-and-sorting-by-count-of-related-items-in-cgridview
First make a statistical query in relations at your User model:
'month_profit' => array(self::STAT, 'User', 'id', 'select'=>'COUNT(*) * 150', 'condition'=>'DATE_SUB(CURDATE(), INTERVAL 30 DAY) <= reg_date'),
Then mark "month_profit" attribute as safe in search scenario in rules.
public function rules() {
return array(
...
array('username, ... , month_profit', 'safe', 'on' => 'search' ),
);
}
Add all these where each one is needed in User search() method:
$user_table = User::model()->tableName();
$month_profit_sql = "(SELECT COUNT(*) FROM user_table WHERE DATE_SUB(CURDATE(), INTERVAL 30 DAY) <= reg_date)";
$criteria->select = array(
'*',
$requests_count_sql . "as requests_count",
$referrals_count_sql . "as referrals_count",
$referrals_payed_sql . "as referrals_payed_count",
$month_profit_sql . "as month_profit",
);
...
$criteria->compare($month_profit_sql, $this->month_profit);
return new CActiveDataProvider(get_class($this), array(
'criteria' => $criteria,
'pagination' => array( 'pageSize' => $pageSize ),
'sort' => array(
'defaultOrder' => $defaultOrder,
'attributes' => array(
'id' => array(
'asc' => '`t`.`id` ASC',
'desc' => '`t`.`id` DESC',
),
...
'month_profit' => array(
'asc' => 'month_profit ASC',
'desc' => 'month_profit DESC',
),
'*',
),
)
));
Finally, modify your grid:
$this->widget('zii.widgets.grid.CGridView', array(
'dataProvider' => $model->search(),
'filter' => $model,
'columns' => array(
'username',
... ,
'month_profit',
array(
'class'=>'CButtonColumn',
),
),
));
Please, let me know if that worked.
EDIT
If that doesnt' work try it without the statistical query.